ModWood Flame Shield in Silver Gum
ModWoodCompositeSolid core
$194 per m² across Australia, inc GST
$147.64 per 5.4 m board
Set your state
4 colours
- Board size
- 137 × 23 mm5.4 m lengths
- Cap
- Uncapped
- Core
- Solid
- Fixing
- Face screws or hidden clips8-gauge x 50 mm countersunk-head screws
- Warranty
- 10 years, residential
- Joist centres
- 450 mm maxResidential; 450 mm commercial
Silver Gum: render colour, indicative. Sampled from the maker’s swatch image (Maker’s web page) on 6 Oct 2026 for the designer’s 3D view; never the real board. Order a sample before you choose.
Other colours of Flame Shield (3)
Photos are the maker’s, credited. Render colours are indicative only.
Specifications
Every published fact, with its source and the day it was checked.
- solid coreclip groove13723
Deck board 137 × 23 mm · 5.4 m, drawn with solid core, uncapped, grooved on both edges for hidden clips
- 13723
Deck board 137 × 23 mm · 5.4 m, drawn with solid core, uncapped, square edges
The board
| Fact | Published value | Source · checked |
|---|---|---|
| Material | Wood-plastic composite | Maker’s web page · checked |
| Core | Solid | Maker’s web page · checked |
| Cap | Uncapped | Maker’s web page · checked |
| Deck board | 137 × 23 mm, grooved both edges · 5.4 m lengths | Maker’s web page · checked |
| Weight (137 × 23) | 3.6 kg per metre | Maker’s datasheet · checked |
| Made in | Australia | Maker’s datasheet · checked |
Installation
| Fact | Published value | Source · checked |
|---|---|---|
| Max joist centres, residential | 450 mm | Maker’s install guide · checked |
| Max joist centres, commercial | 450 mm How this was readGuide marks suitability for commercial applications "yes" with the same 450 mm maximum (may be reduced for concentrated loads). | Maker’s install guide · checked |
| Gap between boards | 4 mm How this was readMinimum gap side by side 4 mm (matches the 4 mm nominal gap in the BAL assessment). | Maker’s install guide · checked |
| End gap rule | Butt joins 2 mm · To walls and solid structures 4 mm · Max overhang 0 mm · Fix when ambient is below 25 C and boards are not in full sun. | Maker’s install guide · checked |
| Butt joints | Board ends land on a double joist | Maker’s install guide · checked |
| Minimum clearance under the boards | 300 mm | Maker’s install guide · checked |
| Subframes | timber and steel How this was readFor BAL compliance the framing must be non-combustible or one of the listed bushfire-resisting timbers. Steel fixing uses tek screws (guide), aluminium is not named. | Maker’s install guide · checked |
| Fixing: face screw | 8-gauge x 50 mm countersunk-head screws | Maker’s install guide · checked |
| Fixing: face screw | 2.8 x 50 mm dome-head twist-shank nails | Maker’s install guide · checked |
| Fixing: face screw | 10-gauge x 40 mm self-tapping tek screws (steel) | Maker’s install guide · checked |
| Fixing: hidden clip | KlevaKlip top-fix clips KT137G (galvanised) and KT137S (stainless) | Maker’s install guide · checked |
| Installation guide | Maker’s install guide · checked |
Tested performance
| Fact | Published value | Source · checked |
|---|---|---|
| Bushfire attack level (AS 3959) | BAL-40 · Usable in: BAL-12.5, BAL-19, BAL-29, BAL-40 · Standard: AS 1530.8.1:2018 against AS 3959:2018; Jensen Hughes assessment report 26247 R4.1 issued 7 May 2026, valid to 30 Jun 2031 · Boards: 137 x 23 mm, nominal 4 mm gaps between boards · Subfloor: Assessed system (Jensen Hughes 26247 SOA4.1): UNENCLOSED sub-floor. The January 2026 guide also allows an enclosed sub-floor; the sources disagree, so only the assessed (unenclosed) configuration is relied on. · Framing: Joists and bearers must be non-combustible or a bushfire-resisting timber: Spotted Gum, River Red Gum, Blackbutt, Silvertop Ash, Red Ironbark, Merbau (Kwila), Turpentine. · Overhang: No overhang or cantilever past the joist at any point. · Identification: Boards carry an inkjet mark "Flame Shield BAL-40, AS1530.8.1" about every 1000 mm. · on steel and aluminium subframes only | Jensen Hughes Fire BAL test report · checked |
| Slip resistance (AS 4586) | R11 (oil-wet ramp) | Maker’s install guide · checked |
Warranty
| Fact | Published value | Source · checked |
|---|---|---|
| Warranty, residential | 10 years | Maker’s web page · checked |
| Fade and stain warranty | No cover statedSources disagree. Maker’s web page says 10 (Product page: "10 Year Warranty - Durability, fade & stain limited cover".). The published value comes from the higher-ranked source; safety facts take the conservative one. | Maker’s datasheet · checked |
Other published facts (2)
Other published facts
| Fact | Published value | Source · checked |
|---|---|---|
| Recycled content (as published) | >85% recycled and reclaimed | Maker’s web page · checked |
| Fixing notes (as published) | Nail gun: Allowed with dome-head stainless coil nails (Paslode Duo-Fast CNP 65 preferred) but pre-drill and hand-nail within 50 mm of board ends; not for steel joists or boards over 23 mm How this was readStainless steel around pools and within 1 km of salt water. 12-gauge screws permitted on 137 mm boards only. | Maker’s install guide · checked |
These are the rows for this colour’s board. The full specification, with every profile, is on the ModWood Flame Shield page.
Every fact here carries its source and the day it was checked. Documents opened 6 Oct 2026.
Prices by state
Set your state once and every price on this site is quoted for it, including GST. Then this page shows the ModWood Flame Shield prices in your state: each the average of the sellers we track there.
ModWood Flame Shield: national averages, across Australia
| Board size | Average $/m² | Per board | Sellers | Prices to |
|---|---|---|---|---|
| ModWood Flame Shield 137 × 23 | $193.91 | $147.64 / 5.4 m | 4 |
Prices from 4 sellers across Australia. We don’t list the whole market, so other sellers may have different prices. Seen 14–15 Oct 2026.
Prices include GST. Each is the average of the sellers we track for that board, each seller counted once, with any price more than 25% from the middle one left out; sample data is badged.
How we get these prices
Each price is an average of the retail prices we have seen for that board, with any price more than 25% above or below the middle price left out. Each seller counts once. Prices include GST and are per square metre of deck (the board’s cover width plus the gap beside it) and per board. Prices were seen on the dates shown on sellers’ own price lists and websites; confirm with the seller before you buy. Price on request for ModWood Flame Shield 137 × 23: no seller we track prices it yet.
Per lineal metre: ModWood Flame Shield 137 × 23 average $27.34.
Customer reviews
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Documents
The maker’s own documents, linked where they publish them (never re-hosted).
- Installation guideModWood Flame Shield - Fixing Instructions (January 2026)
- Bushfire (BAL) test reportSummary of assessment 26247 SOA4.1 - ModWood Flame Shield decking to AS 1530.8.1:2018 (issued 7 May 2026, expires 30 Jun 2031)
All 8 sources behind this page
- ModWood - Flame Shield product page
- CodeMark Certificate of Conformity CM70175 Rev2 - ModWood Decking (issued 31 Jul 2025, revalidated 10 Jun 2026, expires 31 Jul 2028)
- ModWood Flame Shield - Fixing Instructions (January 2026)
- Summary of assessment 26247 SOA4.1 - ModWood Flame Shield decking to AS 1530.8.1:2018 (issued 7 May 2026, expires 30 Jun 2031)
- ModWood product brochure (August 2026) incl. fixing-specification table and ITI distributor list
- Questions and Answers on ModWood (November 2025)
- ModWood - Installation page (overhang limits, temperature advice)
- ModWood Limited [domestic/commercial] Warranty - generic template used for Natural Grain Collection ([10/7 years])
Facts are taken from the highest-ranked source (certificates and test reports, then install guides and datasheets, then warranties, then web pages); when sources disagree the specification says so, and safety facts take the conservative value. Every plan the designer draws from these figures is a concept plan, not for construction: the span tables behind its framing have been checked by a structural engineer, but a builder, building surveyor or certifier must check the plan before you build.
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